Car dumper



S. F. KNIGHT ET AL.

Sept. 7 1926.

7 CAR DUMPER 6 Sheets-Sheet 1 Filed August 18. 1924 Sept. 7, 1926.

S. F. KNIGHT ET AL CAR DUMPER Filed August 18. 1924 6 Sheets-Sheet 2 Sgiia 1 7K n1 Invewiors:

gZe/i. flimonf'lj! K s,

s. F. KNIGHT ET AL- CAR DUMPER Fil'e'ci August -18. 1924 6 Sheets-Sheet s 1 l l l l l l I l 30: l I I a I l L.

Inventors.-

Seiia FKnighi? Sept. 7 1926.

' S. F. KNIGHT ET AL GAR BUMPER 1924 s Sheet-Sheet "4 Filed August 18 Inveniors:

S'eZhFK S. F. KNIGHT Er AL CAR DUMP ER 5. w r a m w A m 1% m M s. F. KNIGHT ET AL CAR DUMPER Sept. 7, 1926.

i Z 0.90% mm. w R m 1 w MN o m m g 90 mm a m my fl L Wm 01m; M 9v H MM r 3 E Q bw 9 mm x mm m m6 t ow mw mm, ow EQ RN m mm 5M3 passing the car-receiving space,

ing upon supporting wheels 11., (see er embodying the invention;

scale, illustrating the cradle and the car clamping means, the latter being shown 1n.

- scribed. receiving cradle Patented Sept. 7, 1926;

STATES PATENT OFFICE.

SETH F. KNIGH or --CHI'CAGO, ILLINOIS, AND ALMON E. NORRIS, or BaooKLINE,

A SACHUSETTS, ASSIGNOR-S To OEIBOSTON, MASSACHUSETTS,

. CAR Y'VDUMPER.

MEAD-MORRISON MANUFACTURING COMPANY, A CORPORATION OF MAINE.

Application filed. August. 1a, 1924. Serial No. 732,618.

This invention. relates to a novel and improved car dumper of-the rotating, cradle type, and will be best, understood by reference. to the following description, when taken in connection with the accompanying: drawings of one illustrative embodiment thereof,'while its scope will be more particularly pointed out in the appended claims.

In the drawings:

Fig. lis aside elevation of a car dump- Fig; 2 is an endelevation of the same, as viewed frointhe right-hand side of Fig. 1,; the hoppeighowever, being shown in vertical section; V

i Fig. 3 is an end elevationon an enlarged the position which it occupies when in en gagementwith the car; I

Figs. 4, 5, 6, 7 and 8, are diagrammatic views on a reduced scale, illustrating the operation of the 'dumpe r, Fig. 4 showing the. parts in'their normal .orinitial positions, Figsu5, 6 and 7 showing successive posi tions occupied by gthe'j'partaand Fig. 8, the final or dumping position; an

Fig. 9. is an elevation on an enlarged, scale, as viewed from the right-hand side of Fig. 2 illustrating the oable-tensioning weights,

their guides, and the adjacent sheave wheels.

:in position ear clears arrangedin pairs, the wheels of each pair being carried by equalizers 15, whleh are fulcrumed onpivots ported by the 7 sides The cradle carries a car-track 18 16 on brackets 17, supof the hoppers.

(best shown in Fig. 3), which in the present example is mounted for transverse movement,

and to this end, herein is mounted on a platen or platform resting on a transverse track 21. ind cated in dotted hnesin in the cradle by being. run onto wheels 20, A car 22, Fig. 2, is placed 19, having the track 18, In the normal position, the

may be caused to abutment 23 carried both sides of the cradle, but it move laterally against an by the cradle, by virtue of a lateral movement of the car and the uence of gravity, assisted by means now to be described. One or ward the left, as v 7 more springs 2% (see Fig. 3) interposed between the platen and one or 'ments 25 tend to urge the car and platen tomore fixed abutiewed in Fig. 3. This tendency, however, is normally resisted by appropriate means,

normally engaging herein one or more rods 26, which may be equ pped with rollers 27,

an abutment presented hen, therefore.

during the rotation of the cradle contraelockwise, as recedes from viewed in Fig. 3, the fixed abutment, the springs the roll 27 Referring to the drawings, and to the em- .24: assert themselves by urging the platen scribed, reference toward the itation .due to left, with the assistance of gravthe inclined position which the transverse trackway then assumes.

hen, therefore, the car mov laterally, its side contacts i the abutment 23, where it remains until it has been dumped and returned toward its normal position, engagement of the rollers 27 with the abutments will cause moved toward the v; represented in Figs.

The car mping.

.A car clamp eies a uprish we when refired the car and'platen to be right into the position .2 and :3.

means are new to. be debeing had at first to Fig. as,

which normally occu- -t1on,;. as represented in Fig. 2, is appropriately mounted for vertical and swinging movement by mounting the same on a pivot 29 carried by an appropriate carrier, herein a slide 30, which is guided by normally vertical guides 31 presented by the cradle. This carrier has an abutment 32, which, when the carrier is lowered sufiiciently, rests upon the upper edge of the car, as represented in Fig. 3, thus stopping the downward movement of the carrier, as well as serving as a part of the clamping means.

The clamp is controlled by a clamp-con trolling cable 33, which as shown in Fig. 2 is secured to the clamp, and leads in an upward direction over a sheave wheel 34, thence in a horizontal direction to and over a sheave wheel 35, thence in a downward direction over a sheave wheel 36, thence in an upward direction over a sheave wheel 37 (see Fig. 9), whence it leads in a downward direction to and about a clamp-controlling, cable-winding drum 88. A weight 39, supported by the sheave wheel 36, serves to tension the cable. The ascent of this weight is limited by a fixed stop presented by the framework. )Vhen the drum 38 is rotated in the proper direction to pay out the cable, the clamp and its slides are permitted to descend until the stop carried by the slide rests upon the top of the car, whereupon the weight 39 will descend from the stop 40 and the clamp will commence to swing about its pivot from the position shown in Fig. 2 to that which is represented in Fig. 3.

The cradle rotating means will now be described, reference being had at first to Fig. 1. Each wheel 13 presents two grooves 41 for cradle rotating cables 42, each of which is dead-ended at 43 on the cradle, and is provided with a turnbuckle 44 for adjustment of its tension. The ropes lead across each other (see Fig. 2), and are wound in opposite directions about a drum 45 (see Fig. 1). Each of these drums is suitably rotated, as by be ing provided with a spur gear 46, which, as shown in F ig. 2, meshes with and is driven by a pinion L7 secured to a shaft 48, to which is also secured the clamp-controlling, cablewinding drum 38. By this means, the operations of the cradle-rotating means and the car-clamping means are coordinated, and rotation of the cradle from its normal position is accompanied by engagement of the carclamping means with the car. There is a differential action between the cables 33 and 42,that is to say, the cable 33 is paid out and wound in faster than the cable 42, as a result of which the clamp continues to rest upon and hold the car until, following the dumping operation and during the restoration to the normal position, the ascent of the weight 39 is stopped by the stop 40, whereupon the shoulder 32of the clamping means rises out of engagement with the car.

Herein, the car-clamping means is rendered doubly effective by the use of a carclamping cable 49 (see Fig. 2), which is dead-ended at 50 on the framework, and leads therefrom between a small sheave wheel 51 and a large sheave wheel 52 carried by the clamp 28; thence over another sheave wheel 53 mounted on and concentric with the pivot 29, thence over a sheave wheel 54; carried by the car-receiving cradle, thence horizontally over another sheave wheel carried by said cradle, thence in an upward direction over a sheave wheel 56 mounted on the framework 11, thence horizontally over a second sheave wheel 57 on said framework, and finally in a clownward direction. A weight 58, secured to the free end of the cable serves to maintain the cable properly tensioned. It will be ob served that this cable partially encompasses the car. When, therefore, the cradle starts to rotate from its normal position, represented in Fig. 4, after a short angular movement of the cradle, the car-clamping cable starts to wrap about the car, so to speak. At first, the cable, by engagement with the sheave wheels 52 and 53, swings the carclamp 28 through the successive positions represented in Figs. 5 and 6 to that which is shown in Fig. 7, wherein itis clamped against the car top.

During the early part of these movements, the cable is assisted by the action of gravity (see Figs. 5 and 6), but before the position shown in Fig. 7 is reached, the force applied to the clamp is furnished jointly by the cables 4-9 and and from then on to the dumping position illustrated in Fig. 8. Toward the end of this movement (i. e.: after reaching the position shown in Fig. 7), the car-clamping cable leaves the sheave wheel 55, and does notreengage the same until the cradle, during its reverse rotation, reaches the same point.

The general operation should be evident without further description, but will be reviewed briefly. Assuming the cradle to be in its normal position, the loaded car is run into place, and power is applied to the shaft 48 on the driving mechanism. The cradle starts to rotate contraclockwise, as viewed in Fig. 4-, and the clamp and its carrier start to descend. The car moves laterally into engagement with the stop, which arrests its movement, and the clamp then descends upon the car, assisted by the clamping cable, which becomes wrapped about the clamp and car. until finally the dumping position shown in Fig. 8 is reached, thus discharging the contents of the car. At this point, the direction of rotation of the driving mechanism is reversed, and the car is restored to its normal position by a reversal of the foregoing operations, after which the empty car is removed from the cradle,

Hav ng this described eat-1 embbdinient'cf our invention; biit without limiting, our

selves theta; whatwe; n -m and desireby on which said'cradle is mounted for rotation atom-an axis within the space occupiec'l-lw and ear, eradn ieiaifihgmeins', statically me-table clamp carrier carriedb5 said cradle and carrying an abutment movable vertical-- ly into and out of engageinentjvini the top of said car; a car clamp pivoted tosaid carrier and adapted toswing into and out oi.

1 engagement with the top of the car, clan1p cemtrouingeabie secured tosaid clamp and sustaining "said clamp and its carrier, a enmp-eenn-oiling, cable-winding drum, clamp-controlling ableft'en'sioning means, a "car-encom assing; clamp-holding cable disposed. at least part about the car-recaving space; and clamp hOl'ding cable tensiofiiiig iii''aiis;

2. In a car dampen the combination of a CaI I'CGii iIiQ cradle mdlliitd to rotateabout a longitudinal this within the car-receiving space; cradle-rotating means; and car clamping instrnnientalities including a clamp and two cables both of which acttour'ge said clamp this the a-- 1 f 3. Ina car' 'dnmp'er,'the combination of 'a car-receiving cradle mou ted to rotate about "a lon it'ud'nal axis within the-canrec'e'i'ving space rotating' means; and car clamping instrumentaliti'e's includ'n a ca clamp, a d we cables one of whichlov'ver's and iaises' said car'clamp', and both of which in-"ge said car clamp onts the "car; 1

i. In a 'c'ardnnipei', the c'ombina'tio'ifi of a car-receivin cradle mounted to rotate about 11ml axis within-the car-receiving indie-rotating means and earclamp- 11;; i strumenta'lities including a carolamp, and two cables oneof which lowers and raises saidca'r clamp, andbot h of which ccuse-race with each other and with said cradleiotating means to utilize rotation of space said cfadle to cause saitl oiiblesfto urge said "ca 'r clamp onto the car in place."

' 5. In ac dumper, the combination of a car-receiving cradle mounted to mtateaboat lbnjqitudiaal axis within the cam ceiving ic'iadlearota ting. "means; and car asse sments has i eluding two operated and the other of which is weight-caut oned and both of which cooperate to clampthe car in place. Y 7

- 6. In a car 'dui'npeifithe combination oi: a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space cradle-rotating means; and car clamping instrumentalitie's including two cables, oneof which is secured at one end to said clamp and has its other end power-operated, the other of which is weight-controlled, and both of Whichcooperate to cause said ca'r clamp to clamp the car in place.

7. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space; cradle-rotating means; and car clamping instrument'alities including 'two cables, one of which is secured at one end to sa-id'clamp and has its other end power-operated, the other of which at least partially encompasses the CZLITGCBlViIlQ space and is weight-controlled, and both of which cable's cooperate to cause said car clamp to clamp the car in place. i

8. In a car dump'er,-the combination of a car-receiving cradle mounted to rotate about a longitndinalaxis within the car-receiving space; cradle-rotating means; and car clamping instrumentalities including two cables, one of which is connected to said clamp and is power-operated, the other of which cables extends down one side, thence beneath and thence up the other side of the car-receiving space and is weight-controlled and'b'oth of which cables cooperate to clamp the car in place.

9. In a *car du'm'p'er, the combination of a car-receiving cradle mounted to rotate'ab'o'ut a longitudinal axis within the car-receiving space; "cradle-rotating means; and car clamping instriimentalities including twocables, one "of which is connected to said clamp, is power-operated and provided with V 'tensioning means, the other of which cables extends down one side, thence beneath and thence up the other side of the car-receiving "space, and both of which cables cooperate to clamp the car in place. i r

10. In afcar duniper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving v space; car-clamping instrumentalities ineluding two cables, one of which is connected to said clamp and lowers the same toward the car, the other of which extends down one sideythencebeneath and thence up the other sideo f the fcar receiv-ing space, and both of which cables cooperate with each other in the operation of said clamp and cradle-rotating means to rotate'sa'id cradleto causesa'id other cable to nbe 'wrapped across said clamp and to urge the saine toward the Year. I

a; car 'dumper; the combination "of a car-receiving cradle mounted to rotate about a longitudinal axis within the carreceiving space; cradle rotating means; car clamping means including a clamp and a clamp-lifting cable; means connecting and coordinating the operations of said cradle rotating means and said car clamping means to cause rotation of said cradle from its normal position to be accompanied by engagement of said car clamping means with the car; a car clamping cable; and means to cause said car clamping cable and said clamp-lifting cable to hold said car cla np in engagement with said car.

12, In a car damper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space; cradle-rotating means including a cradle-rotating cable and a cradlerotating cable winding drum; car-clamping means including a car clamp, a car-clamp lifting cable and an operating cable drum; means connecting and coordinating the operations of said drums to cause rotation 01" said cradle from its normal position to be accompanied by engagement of said carclamping means with said car; a car-clamping cable; and means to cause said carclamping cable and said clamp-lifting cable to hold said car-clamp in engagement with said car.

13. In a car damper, the combination of a car track; a track carrying cradle mounted to rotate about a longitudinal axis within the car-receiving space; cradle rotating means; a car clamp; a car clamp lifting cable; a car clamp lifting cable winding drum; means connecting and coordinating the operations of said cradle rotating means with said drum to cause rotation of said cradle from its normal position to be accompanied by engagement of said clamp with the car; a car clamping cable; and means to cause said car clamping cable and said clamp-lifting cable to hold said clamp in engagement with the car.

14. In a car dumper, the combination of a car-receiving and dumping cradle, and car clamping instrumentalities comprising clamping means, a controlling cable for said clamping means, a tensioning weight for said cable, and a stop which limits the ascent of said weight and causes said clamping means to release the car.

15. In a car dumper, the combination of a car-receiving and dumping cradle, cradle inverting means including a cable, car clamping instrumentalities comprising clamping means, a controlling cable for said clamping means, and means for causing a differential action between said cables.

16. In a car dumper, the combination of a car-receiving and dumping cradle, cradle inverting means including a cable,'car clamping instrumentalitiescomprising clamping means, a controlling cable for said clamping means, a tensioning weight for the lastmentioned cable, a stop which limits the ascent of said weight and causes said clamping means to release the car, and means for causing a diiterential action between said cables.

17. In a car dumper, the combination of a car-receiving cradle mounted to rotate about alongitudinal axis within the carreceiving space, and car-clamping means including a clamp-setting cable having a bight about the car-receiving space.

18. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the carreceiving space, and car-clamping means including a clamp above the car-receiving space, and a clamp-setting rope extending from said clamp in a downward direction on one side of the car-receiving space, thence beneath and across the car-receiving space, and thence in an upward direction on the other side of the car-receiving space.

19. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space, and car-clamping means including a clamp above the car-receiving space, and a clamp-setting rope extending from said clamp in a downward direction 011 one side of the car-receiving space, thence between and across the car-receiving space, thence in an upward direction on the other side of the car-receiving space, and thence in a downward direction, and a weight attached to the last-mentioned portion of said cable.

20. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space, and car-clamping means including a clamp-setting cable having a bight about the car-receiving space, a clamp attached to one end of said cable and a weight attached to the other end of said cable.

21. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car-receiving space, and car-clamping means including sheave wheels carried by said cradle below the car-receiving space, a sheave wheel extraneous to said cradle, a clamp above the car-receiving space, and a clamp-setting cable attached to said clamp and extending over saidisheave-wheels in succession in the order named.

22. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis within the car receiving space; cradle rotating means; and car-clamping instrumentalities including two cables which cooperate to clamp the car in place, a motor for operating one of said cables, and tensioning means for such cable.

23. In a car dumper, the combination of a car-receiving cradle mounted to rotate about a longitudinal axis Within the car-receiving space; cradle-rotating means; a and carclamping instrumentalities including a car clamp, two cables one of which lifts said car clamp and both of which cooperate to cause said car-clamp to clamp the car in place, a drum on which said car clamp 1ifting cable is Wound, a motor for rotating said drum; and a weight supported by one end of the other cable and constantly tensioning the latter.

In testimony whereof, We have signed our names to this specification.

SETH FJKNIGHT ALMON ENORRIS. 

